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NUEROPHYSIOLOIGY: NERVE FUNCTION

Membrane Potential- all cells have a resting membrane potential, membranes are polarised more negative on the
inside than the outside.

HOW IS RESTING MEMBRANE POTENTIAL GENERATED

ICF has high K+
ECF has low K+ and high Na+
ICF anions are mainly proteins

ECF anions are mainly Cl-…

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Synaptic cleft fluid filled space between the pre-synaptic and post synaptic cells
Post synaptic membrane containing receptors for the neurotransmitter.

NEUROTRANSMITTERS
Acetylcholine
Noradrenaline

Three factors which determine the rate of a nerve impulse
Myelination
Thickness of nerve
Temperature

What is meant by the terms?

Excitatory Postsynaptic Potential ­ when the…

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